D.I.Y. Exposure Unit
Posted: Tue May 18, 2010 2:21 pm
Hey everyone,
I'm in the process of building my first exposure unit and I've been following plans very similar to these:
http://web.archive.org/web/200601160357 ... Ubldit.htm
It's mostly gone as plan, except I cannot get the fluorescent bulbs to reliably light. They usually turn on extremely dim near the ends of the bulbs. I've done some searching online for a few days and the best I could come up with is that the ballasts and reflector are improperly grounded. So I went out and got a piece of galvanized sheet metal and I will connect that to the ground wire and use that as a reflector.
What is the best way to wire the ground to the sheet metal? Also, has anyone else had a similar problem before? Was it solved by grounding? Is there a way I can test to see if the unit is properly grounded?
Thanks in advance
I'm in the process of building my first exposure unit and I've been following plans very similar to these:
http://web.archive.org/web/200601160357 ... Ubldit.htm
It's mostly gone as plan, except I cannot get the fluorescent bulbs to reliably light. They usually turn on extremely dim near the ends of the bulbs. I've done some searching online for a few days and the best I could come up with is that the ballasts and reflector are improperly grounded. So I went out and got a piece of galvanized sheet metal and I will connect that to the ground wire and use that as a reflector.
What is the best way to wire the ground to the sheet metal? Also, has anyone else had a similar problem before? Was it solved by grounding? Is there a way I can test to see if the unit is properly grounded?
Thanks in advance